There is no evidence that Russia hacked the Democratic party server, as per the testimony of the Crowdstrike chairman before congress, while under oath.IT experts from the FBI and German intelligence authorities have gathered evidence showing that the attack was carried out by the hacker collective APT28, also known as Fancy Bear, working for the GRU. The same group is believed to have been behind the hack attack on the Democratic party in the run-up to the US presidential elections in 2016.